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arXiv math/9308210math.LO
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金丝雀树

The canary tree

Alan H. Mekler, Saharon Shelah

摘要:

金丝雀树是一棵基数树,连续统没有不可数的分支,但每当一个平稳集被破坏时(不添加实数)就会得到一个分支。金丝雀树是无限模型论中的一个重要分支。金丝雀树的存在性与ZFC + GCH无关。

英文摘要:

A canary tree is a tree of cardinality the continuum which has no uncountable branch, but gains a branch whenever a stationary set is destroyed (without adding reals). Canary trees are important in infinitary model theory. The existence of a canary tree is independent of ZFC + GCH.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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